ENYAML: Evaluation Notation YAML

Basically, it’s a templating language for YAML documents.

Here’s a simple example:

---
!set
name: Guido
---
salutation: !$f "Hello, {name}!"

When rendered:

salutation: Hello, Guido!

Traditional approaches to templating YAML, eg. jinja+yaml from the saltstack world, are just text-based templates that produce (hopefully valid) YAML output. ENYAML’s approach is to use valid YAML as input, then render the document structure directly as native objects. You can then consume the data directly, or dump it back out to YAML, which is guaranteed to be valid.

Contents:

• Getting Started
  • Installation
  • Writing a Simple Template
  • Rendering a Template
  • Rendering Within Python
  • Next Steps
• Template Syntax
  • A Simple Example
  • The Context
  • Setting Context Variables
  • Expressions
  • Format String Expressions
  • Loops
  • Conditionals
• API
  • High-Level API
  • Context
  • Loader
  • Dumper
  • Node Representation
• License

Indices and tables

• Index

• Module Index

• Search Page